As expected, Facebook today once again updated its filing for an initial public offering (IPO) with the U.S. Securities and Exchange Commission (SEC). This is the eighth time it has done so, and the biggest change is that has increased the number of IPO shares by 25 percent.

Here's the relevant text in the seventh amendment:

Facebook, Inc. is offering 180,000,000 shares of its Class A common stock and the selling stockholders are offering 157,415,352 shares of Class A common stock. We will not receive any proceeds from the sale of shares by the selling stockholders. This is our initial public offering and no public market currently exists for our shares of Class A common stock. We anticipate that the initial public offering price will be between $34.00 and $38.00 per share.

Here's the changed text in the eighth amendment:

Facebook, Inc. is offering 180,000,000 shares of its Class A common stock and the selling stockholders are offering 241,233,615 shares of Class A common stock. We will not receive any proceeds from the sale of shares by the selling stockholders. This is our initial public offering and no public market currently exists for our shares of Class A common stock. We anticipate that the initial public offering price will be between $34.00 and $38.00 per share.

As of Wednesday (today), Facebook is offering some 421.2 million shares. This means Facebook could raise anywhere between $14.32 billion and $16.01 billion. If you include the over-allotment, meaning a grand total of 484.4 million shares, Facebook could raise anywhere between $16.47 billion and $18.41 billion. It's important to emphasize that Facebook itself is still selling the same number of shares, while it's investors are the ones upping the ante.

Accel Partners: 49.03 million shares, leaving it with around 152.35 million shares.

DST Group: 45.66 million shares, left with around 85.62 million shares

Goldman Sachs: 28.67 million shares, left with around 37.27 million shares.

Elevation Partners: 4.62 million shares, left with around 35.49 million shares.

Greylock Partners: 7.61 million shares, left with around 29.05 million shares.

Mail.ru Group: 19.60 million shares, left with around 36.75 million shares.

Zynga CEO Mark Pincus: 1.01 million shares, left with around 4.30 million shares.

Meritech Capital Partners: 7.00 million shares, left with around 29.66 million shares.

Microsoft: Offering 6.56 million shares, left with around 26.23 million shares.

Reid Hoffman: 942,000 shares, left with around 3.77 million shares.

Tiger Global Management: 23.41 million shares, left with around 60.43 million shares.

All other parties plan to keep holding their shares. These include T. Rowe Price, Andreessen Horowitz, Sean Parker, and Dustin Moskovitz.

Facebook's amended filing does not mention yesterday's news that General Motors (GM) plans to stop spending $10 million on Facebook ads, after concluding that they were not influencing consumers. Facebook changed its "cash, cash equivalents, and marketable securities" number from $10,312 million to $10,311 million, but that's not enough to represent the GM loss.